CVE-2022-30774

Medium

Description

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) . This issue was discovered by Insyde engineering during a security review. This iss was fixed in Kernel 5.2: 05.27.29, Kernel 5.3: 05.36.25, Kernel 5.4: 05.44.25, Kernel 5.5: 05.52.25. CWE-367 https://www.insyde.com/security-pledge/SA-2022043

SeverityMedium
CVSS6.4
Exploit probability5. percentile0.2%
ProductInsyde Kernel
PublishedNov 15, 2022
First seenNov 15, 2022
Weakness typeCWE-367CWE-367

How to fix

Update
  • insyde kernel5.2.05.27.29, 5.3.05.36.25, 5.4.05.44.25, 5.5.05.52.25 or later

Affected products

ProductAffected versionsFixed in
insyde kernel5.2 ≤ v < 5.2.05.27.29, 5.3 ≤ v < 5.3.05.36.25, 5.4 ≤ v < 5.4.05.44.25, 5.5 ≤ v < 5.5.05.52.255.2.05.27.29, 5.3.05.36.25, 5.4.05.44.25, 5.5.05.52.25

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